diff --git a/server.py b/server.py
index 381e445..ae4e2ed 100644
--- a/server.py
+++ b/server.py
@@ -49,14 +49,16 @@ def hello():
     hex = hex.replace("#", "")
 
     str = "56" + hex + "00f0aa"
-    # try:
-    result = subprocess.run(
-        [f"gatttool -i hci0 -b b2:3b:03:00:14:d6 --char-write-req -a 0x0009 -n {str}"],
-        stdout=subprocess.PIPE,
-        shell=True,
-    ).stdout.decode("utf-8")
-    print(result)
-    if "Characteristic value was written successfully" not in result:
-        raise Exception
-    else:
-        return request.query_string
+    try:
+      result = subprocess.run(
+          [f"gatttool -i hci0 -b b2:3b:03:00:14:d6 --char-write-req -a 0x0009 -n {str}"],
+          stdout=subprocess.PIPE,
+          shell=True,
+      ).stdout.decode("utf-8")
+      print(result)
+      if "Characteristic value was written successfully" not in result:
+          raise Exception
+      else:
+          return request.query_string
+    except:
+      raise Exception
\ No newline at end of file